Circulation fan for smoker oven



FIG. 1 is a front-perspective view of the circulation fan.

FIG. 2 is a back-perspective view.

FIG. 3 is a front view.

FIG. 4 is a back view.

FIG. 5 is a left-side view.

FIG. 6 is a right-side view.

FIG. 7 is a top view.

FIG. 8 is a bottom view; and,

FIG. 9 is a front-perspective exploded view of the circulation fan for smoker oven.

The broken lines represent portions of the circulation fan for smoker oven that form no part of the claimed design. 

CLAIM The ornamental design for a circulation fan for smoker oven, as shown and described. 